import pygame.font

class ScoreBoard:
    """显示得分的类"""

    def __init__(self,ai_game):
        """初始化显示得分的属性"""
        self.screen = ai_game.screen
        self.screen_rect = self.screen.get_rect()
        self.stats = ai_game.stats

        # 显示得分信息时使用的字体设置
        self.text_color = (30,30,30)
        self.font = pygame.font.SysFont(None,48)

        # 准备初始化得分图像
        self.prep_score()

    def prep_score(self):
        """将得分渲染为图像"""
        score_str = str(self.stats.score)
        self.score_image = self.font.render(score_str,True,self.text_color,self.settings.bg_color)

        # 在屏幕右上角显示得分
        self.score_rect = self.score_image.get_rect()
        self.score_rect.right = self.screen.right - 20
        self.score_rect.top = 20